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27 Energy and heat transfer engineering
New standards
EVS-EN IEC 62676-6:2026
Video surveillance systems for use in security applications - Part 6: Performance testing and grading of real-time intelligent video content analysis devices and systems for use in video surveillance applications
Scope: This Standard specifies the functions, performance, interfaces, environmental adaptability, test methods, performance evaluation and grading rules of real-time intelligent video analysis in surveillance systems.
This Standard applies to live and forensic, real-time intelligent video analysis devices and systems in video surveillance.
The standard is centered on testing performance and grading device functionality which enables;
- Core Capability: Classification of Objects, Detection of specific "object activity" such as "stopping", "starting", "direction of movement", etc.
Examples and current expanded list in Annex H
- Complex Capability: Detection of "scenarios" which are based on combinations of object activity such as "loitering", "perimeter intrusion detection", "person down", "tailgating", "intrusion", “abandoned object detection”, Explosion, Fire, Flood, Potential Terrorist attack using a vehicle, Owner of an abandoned bag, etc.
Examples of current scenarios are listed and described in Annex I
Base documents: IEC 62676-6:2026; EN IEC 62676-6:2026
EVS-EN IEC 61400-40:2026
Wind energy generation systems - Part 40: Electromagnetic compatibility (EMC) - Requirements and test methods
Scope: IEC 61400-40:2026 provides the EMC requirements and test methods that apply to the individual wind turbine and all the sub systems which are part of the wind turbine.

The current document applies to measurements on individual wind turbines and not multiple wind turbines.

This document defines the requirements and test methods for the verification of the wind turbine performance against radiated emissions and the immunity of their components against conducted and radiated phenomena. This document is applicable to onshore and offshore wind turbines.
Base documents: IEC 61400-40:2026; EN IEC 61400-40:2026
EVS-EN ISO 8528-13:2026
Reciprocating internal combustion engine driven alternating current generating sets - Part 13: Safety (ISO 8528-13:2026)
Scope: This document specifies the safety requirements for reciprocating internal combustion (RIC) engine driven generating sets up to 1 000 V alternating current (AC) or 1 500 V direct current (DC) and voltages above 1 000 V (AC) and not exceeding 36 kV consisting of an RIC engine, an AC generator including the additional equipment required for operating, e.g. controlgear, switchgear, auxiliary equipment.
This document is applicable to generating sets for land and marine use (domestic, recreational and industrial application). This document is not applicable to generating sets used on board of seagoing vessels and mobile offshore units as well as on aircraft or to propel road vehicles and locomotives.
This document is not applicable to gensets and components manufactured before the date of its publication.
NOTE            This document does not apply to arc welding equipment (IEC 60974 series).
This document does not specify the special requirements needed to cover operation in potentially explosive atmospheres and is not applicable for such environments.
The hazards relevant to RIC engine driven generating sets are identified in Table A.1.
This document deals with the special requirements of test and safety design which are observed in addition to the definitions and requirements in ISO 8528-1:2018, ISO 8528-2:2018, ISO 8528-3:2020, ISO 8528-4:2025, ISO 8528-5:2025, ISO 8528-6:2023 and ISO 8528-10:2022, where applicable. This document specifies safety requirements in order to protect the user from danger.
Base documents: ISO 8528-13:2026; EN ISO 8528-13:2026
ISO 17225-5:2026
Solid biofuels — Fuel specifications and classes — Part 5: Graded firewood
Scope: This document specifies the fuel quality classes and specifications of graded firewood. This document applies only to firewood produced from the following raw materials (see ISO 17225-1:2021, Table 1):

1.1.1 Whole trees without roots;
1.1.3 Stemwood;
1.1.4 Logging residues (thick branches, tops, etc.);
1.2.1 Chemically untreated by-products
Base documents:
Replaces: ISO 17225-5:2021
ISO 50100:2026
Energy management systems and energy savings — Decarbonization — Requirements with guidance for use
Scope: This document specifies requirements and provides guidance that enable an organization to reduce its energy-related greenhouse gas (GHG) emissions (ERGE).
This document is applicable:

to any organization regardless of its type, size, complexity, geographical location, organizational culture or the products and services it provides;
to energy-related Scope 1 emissions and Scope 2 emissions;
irrespective of the quantity, use or types of energy consumed.

This document requires demonstration of absolute ERGE reduction aligned with ERGE target(s).
Annex A provides information on the relationship between ISO 50001:2018 and this document.
Annex B provides information on GHG emissions and GHG emission factors.
Annex C provides guidance related to the decarbonization planning.
Base documents:
Replaced standards
EVS-EN ISO 8528-13:2016
Reciprocating internal combustion engine driven alternating current generating sets - Part 13: Safety (ISO 8528-13:2016, Corrected version 2016-10-15)
Scope: ISO 8528-13:2016 specifies the safety requirements for reciprocating internal combustion (RIC) engine driven generating sets up to 1 000 V consisting of an RIC engine, an alternating current (AC) generator including the additional equipment required for operating, e.g. controlgear, switchgear, auxiliary equipment.
It is applicable to generating sets for land and marine use (domestic, recreational and industrial application). It is not applicable to generating sets used on board of seagoing vessels and mobile offshore units as well as on aircraft or to propel road vehicles and locomotives.
NOTE This part of ISO 8528 does not apply to arc welding equipment (IEC 60974 series).
The special requirements needed to cover operation in potentially explosive atmospheres are not covered in this part of ISO 8528.
The hazards relevant to RIC engine driven generating sets are identified in Annex A.
ISO 8528-13:2016 deals with the special requirements of test and safety design which should be observed in addition to the definitions and requirements in ISO 8528-1, ISO 8528-2, ISO 8528-3, ISO 8528-4, ISO 8528-5 and ISO 8528-6, where applicable. It specifies safety requirements in order to protect the user from danger.
Base documents: ISO 8528-13:2016; EN ISO 8528-13:2016
ISO 17742:2015
Energy efficiency and savings calculation for countries, regions and cities
Scope: ISO 17742:2015 provides a general approach for energy efficiency and energy savings calculations with indicator-based and measure-based methods for the geographical entities countries, regions, and cities.
ISO 17742:2015 considers all end-use sectors, such as households, industry, tertiary (services, etc.), agriculture, and transport. It does not incorporate calculation of energy efficiency and energy savings in energy supply sectors, such as power plants, refineries, and coal mines.
Base documents:
ISO 50049:2020
Calculation methods for energy efficiency and energy consumption variations at country, region and city levels
Scope: This document gives guidelines for methods for analysing changes in energy efficiency and energy consumption, and for measuring energy efficiency progress, for countries, regions and cities. It is composed of three different calculation methods:
- evaluation of structure effects in the variation of energy intensity;
- calculation of energy efficiency indices;
- decomposition analysis of energy consumption variation.
This document is applicable to providing an aggregated statistical evaluation for a country, region or city. It does not apply to calculating changes in the energy consumption or in energy efficiency at the individual consumer's level (e.g. households, organizations, companies).
Base documents:
ISO 17225-5:2021
Solid biofuels — Fuel specifications and classes — Part 5: Graded firewood
Scope: This document determines the fuel quality classes and specifications of graded firewood. This document covers only firewood produced from the following raw materials (see ISO 17725‑1:2021, Table 1):
—    1.1.1 Whole trees without roots;
—    1.1.3 Stem wood;
—    1.1.4 Logging residues (thick branches, tops etc.);
— 1.2.1 Chemically untreated by-products and residues from wood processing industry.
Base documents:
Replaced: ISO 17225-5:2026
Drafts
prEN IEC 61400-16:2026
Wind energy generation systems - Part 16: Standard format for sharing power curves and associated information
Scope: The Scope of the IEC 61400-16 standard is to establish a common content, terminology and structure applicable to all wind turbine OEMs for the sharing of wind turbine power curves and associated information (3.1.17) (for background, see Annex A) in a machine-readable format.
Throughout the remainder of this document, this common structure is defined by a Power Curve Schema. A JSONSchema (3.1.11) defines how to structure and populate a specific JSON (3.1.10) document (for more detail, see Annex B), and can be used for automated data validation.
The power curves and associated information (3.1.17) communicated within a JSON (3.1.10) document (which is compliant with the Power Curve Schema) covers:
– Document metadata
– The turbine model characteristics (3.1.25)
– Design basis information
– Operating mode information, where each mode contains
• Power (as a function of wind speed and optionally other parameters)
• Thrust (as a function of wind speed and optionally other parameters)
• Optional acoustic emissions (as a function of wind speed and other parameters) – Power de-rating details
JSON documents containing power curves and associated information shall be based on the JavaScript Object Notation ("JSON") format ISO/IEC 21778:2017 and shall follow the specifications in this document (i.e. conform to the Power Curve Schema).
Security, document integrity (e.g. digital signing) and distribution of data rests with the authors and users of the data and is outside the scope of the standard.
Measured power curves can be represented using the Power Curve Schema but details relating to the measurement configuration, statistics of the measurement results and other details specific to power performance measurements cannot be captured.
This standard does not specify document generation, display, checking or publishing processes
which may be achieved using third party or custom tools (e.g. automated PDF report generation from the JSON data).
Base documents: 88/1161/CDV; prEN IEC 61400-16:2026